Sony UWP-V1, Service Manual

Page: 77 / 164

2-57
UWP Series
2-5-2. Adjustments
This section describes adjustments and checks which must be
completed to assure that the specifications are complied with.
Make adjustment and checks following the procedure below:
Preparation
1. When adjustments are performed, remove the MB-1094
board from UTX-P1 unit.
(Refer to the Section 1-1-6. for removal.)
2. Connect the SMA-BNC conversion connector (J-6402-
480-A) and the MM-SMA conversion connector (J-
6402-490-A) to the antenna terminal (CN101) on the
MB-1094 board as shown below.
CN101
MB-1094 board (A side)
MM-SMA conversion connector
SMA-BNC conversion connector
(+)
BATT
GND
Lead wire
FL301
DC ammeter
MB-1094 board (B side)
DC regulated power supply
(DC output voltage :
+ 3.0 ± 0.1 V)
Lead wire
3. Connecting the DC power supply
Supply the DC power to the battery terminal on MB-
1094 board using the wires as below.
Check
After the DC power supply connection is complete, set
the power switch (S301) to ON, and check the level on
DC ammeter.
DC ammeter indication level: 150 to 220 mA
Switch and Control Initial Setting
MB-1094 board
Switch and Control Setting
U30 model ; 30-01 channel (566.125 MHz)
U42 model ; 42-01 channel (638.125 MHz)
U6264 model ; 62-01 channel (758.125 MHz)
U6668 model ; 66-01 channel (782.125 MHz)
CE62 model ; Group 00, 62-01 channel (798.125 MHz)
CE67 model ; Group 00, 67-01 channel (838.125 MHz)
Attenuation setting : 0 dB
Accumulated time setting : “00 : 00”
MIC/LINE Select Switch (S1) : MIC
n
Note down the setting position before the adjustment.
After the Adjustment complete, set the original position.
1. Power Supply Voltage Check
2. Carrier Frequency Adjustment
3. RF Power Output Adjustment
4. Reference Frequency Deviation Adjustment
5. Maximum Frequency Deviation Adjustment
6. Distortion Ratio Check
7. S/N Check
8. Frequency Characteristics Check
9. Tone Signal Adjustment
10. Spurious Emissions Check
11. Occupied Band Width Check
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